Title:
STEAM ABLATION DEVICE AND STEAM GENERATION APPARATUS THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/103972
Kind Code:
A1
Abstract:
A steam ablation apparatus and a steam generation apparatus (12) thereof, comprising a coil (120), an electrode (121), a motor (123) for driving the electrode (121) to move to adjust an effective length of the coil (120) connected to a circuit where the coil (120) is located, and a control circuit. The control circuit comprises a controller (20) and a sampling circuit. The sampling circuit comprises a temperature sampling circuit (24), a voltage sampling circuit (23), and a current sampling circuit (25). A liquid is heated in the coil (120) to be converted into steam. The temperature sampling circuit (24) acquires the current temperature of the coil (120) and sends same to the controller (20), and the controller (20) determines a target resistance value of the coil (120) according to the current temperature and a correspondence relationship between temperatures of the coil (120) and the variation of resistance values of the coil (120). The voltage sampling circuit (23) and the current sampling circuit (25) respectively acquire the current working voltage and the current working current of the coil (120) and send same to the controller (20), and the controller (20) determines the current resistance value of the coil (120) according to the current working voltage and the current working current, and controls, according to a difference between the current resistance value and the target resistance value, the motor (123) to rotate to drive the electrode (121) to move to a target position, so as to adjust the effective length to correspond to the target resistance value.
Inventors:
XU HONG (CN)
Application Number:
PCT/CN2022/136627
Publication Date:
June 15, 2023
Filing Date:
December 05, 2022
Export Citation:
Assignee:
HANGZHOU BRONCUS MEDICAL CO LTD (CN)
International Classes:
A61B18/04; G01R19/25; G05B19/042; H02P8/20
Foreign References:
| CN216956168U | 2022-07-12 | |||
| CN217508634U | 2022-09-27 | |||
| CN106659874A | 2017-05-10 | |||
| JP2011038419A | 2011-02-24 | |||
| CN109292573A | 2019-02-01 | |||
| CN110037793A | 2019-07-23 | |||
| CN112773498A | 2021-05-11 | |||
| US20150025515A1 | 2015-01-22 |
Attorney, Agent or Firm:
SHINY INTELLECTUAL PROPERTY FIRM (CN)
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